package labox.innovation.gameserver.network.gameserverpackets;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

/**
 * @author -Wooden-
 *
 */
public abstract class GameServerBasePacket {
	private ByteArrayOutputStream _bao;

	protected GameServerBasePacket() {
		_bao = new ByteArrayOutputStream();
	}

	protected void writeInt(int value) {
		_bao.write(value & 0xff);
		_bao.write(value >> 8 & 0xff);
		_bao.write(value >> 16 & 0xff);
		_bao.write(value >> 24 & 0xff);
	}

	protected void writeShort(int value) {
		_bao.write(value & 0xff);
		_bao.write(value >> 8 & 0xff);
	}

	protected void writeByte(int value) {
		_bao.write(value & 0xff);
	}

	protected void writeDouble(double org) {
		long value = Double.doubleToRawLongBits(org);
		_bao.write((int) (value & 0xff));
		_bao.write((int) (value >> 8 & 0xff));
		_bao.write((int) (value >> 16 & 0xff));
		_bao.write((int) (value >> 24 & 0xff));
		_bao.write((int) (value >> 32 & 0xff));
		_bao.write((int) (value >> 40 & 0xff));
		_bao.write((int) (value >> 48 & 0xff));
		_bao.write((int) (value >> 56 & 0xff));
	}

	protected void writeString(String text) {
		try {
			if (text != null) {
				_bao.write(text.getBytes("UTF-16LE"));
			}
		} catch (Exception e) {
			e.printStackTrace();
		}

		_bao.write(0);
		_bao.write(0);
	}

	protected void writeBytes(byte[] array) {
		try {
			_bao.write(array);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public int getLength() {
		return _bao.size() + 2;
	}

	public byte[] getBytes() {
		writeInt(0x00); // 为校验保留的4字节
		return _bao.toByteArray();
	}

	public abstract byte[] getContent() throws IOException;
}
